Flat 27, Grenville Court, Lymer Avenue, London, SE19 1LR

UPRN:200003433404Flat/Maisonette2 bedsBuilt 1967-1975

FreeholdCouncil Tax: Band CEPC: C (69)

Data freshness:Planning· 4mo agoOwnership· freshEPC· 6mo agoRisk· 5mo agoConnectivity· 1mo agoAmenities· 2mo agoArea· Census 2021Council Tax· 6mo ago

Flat 27, Grenville Court, Lymer Avenue, London, SE19 1LR

HP Score

/ 100

Strong

Verdict

2 days ago

Verdict: INVESTIGATE, on a scale of Buy, Investigate, Avoid.
Strong fundamentals; flood risk not assessed

Evidence

18 of 21 sources

Sale Estimate

£458,000

£435k - £481kHigh

Estimate

£458k

Range

£435k – £481k

Rent Estimate (pcm)

£2,150

£2k - £2k

Monthly

£2,150

Yield

5.55%

Verdict

Derived from HomePortfolio scores

Flat 27 earns an INVESTIGATE rating with HP Score 80/100. Investment score 77/100 reflects strong fundamentals. Crime intensity is low. Walkability is good (70/100). Flood risk is not assessed: check the Environment Agency long-term flood map before offering. Tenure is freehold. Every figure here comes from the live HomePortfolio API; anything it does not publish is left out.

Key SourcesEPC RegisterPortal listingsOfcom Connected NationsOfcom mobile coverageMarket estimates (third-party AVM)Defra strategic noise mapping, England Round 4 (Contains Defra data © Crown copyright and database right 2023-2024, Open Government Licence v3.0)Walk ScoreONS Census 2021Police.ukHM Land Registry company ownershipHM Land Registry leasesHM Land Registry Price PaidPlanIt / council planning portalsOverture Maps PlacesOfsted / DfE GIAS

HP Score

80/ 100

Strong

Investment Score

77/ 100

High

Crime Score

21/ 100

Moderate

Walkability

70/ 100

High

Transit & Bike

Transit 69Bike 68

Walk Score, out of 100

Opportunity

Why this could be an opportunity

Low confidence0 independent sourcesLead to verifyListing checked 12 Nov 2026

This rests largely on a single source. Treat the score as a prompt to investigate, not a conclusion.

Check before relying on this score: leasehold with no service charge disclosed - the stress test assumes GBP 0. It ranks after every home whose inputs are verified.

Valuation edge0/15
claims [AVM -1.5% (HIGH)] → measured edge +0.00pp of the ask; on later-registered sales an AVM discount carried no edge and a sold-evidence gap at most +0.5pp
Market estimate used (HIGH confidence) · snapshot 13 Oct 2026
- valuation_snapshotsestimate for 200003433404· as of 13 Oct 2026
Rental economics3.8/40
gross yield 5.5%; range width penalty ×0.87
- valuation_snapshotsrent estimate 2150/mo (range 1950-2300)· as of 13 Oct 2026· verify before relying on this
Stress margin0/30
stressed cash flow -511/mo, -24% of rent (6.75% on a 75% loan; no service charge or ground rent disclosed); fails the stress - earns nothing; leasehold with no service charge disclosed - the stress assumes GBP 0
- underwriting_assumptionscosts not disclosed by the advert· as of 12 Nov 2026· verify before relying on this
Seller motivationNot scored
context, not scored: 0 price cut(s), 199 days on market; homes with a cut sold 0.2-0.3pp further below the cut ask, which is not an edge
- portal_listingsprice_changes + first_published_date· as of 12 Nov 2026
Risk & liquidity14.6/15
249 sales/12mo in area; valuation range width 10%
- property_intelligencetransactions_12mo

4 of 4 components scored. Ranks on gross yield, the stress margin, risk and disclosed facts. A pricing claim earns only its measured edge: today 0 for the market estimate and at most +0.5pp for sold evidence. The score itself is not yet checked against the outcomes of homes it scored.

Economics

What happens to your money

Price sensitivity

£349,000£535,000

The same scorer re-run at hypothetical asking prices, holding rent, comps and listing history constant. Not a prediction of what the seller would accept.

Your assumptions

Purchase price£465,000

At the asking price

Monthly rent£2,150/mo

Evidenced range £1,950-£2,300

Interest rate5.4%

Loan to value75%

Cash required: £154,050
Net cash flow: -£81/mo
Cash on cash: -0.6%
Score at this price: 18

After a 8% void allowance, 15% management and 10% maintenance. Lender coverage (rent ÷ interest): 1.37 - clears the usual 1.25 test. These are your assumptions, not evidence: only the pre-filled rent and price come from the record.

Evidence

Where every number comes from

valuation_snapshotsestimate for 200003433404Valuation edge · as of 13 Oct 2026
valuation_snapshotsrent estimate 2150/mo (range 1950-2300)Rental economics · as of 13 Oct 2026 · verify before relying on this
underwriting_assumptionscosts not disclosed by the advertStress margin · as of 12 Nov 2026 · verify before relying on this
portal_listingsprice_changes + first_published_dateSeller motivation · as of 12 Nov 2026
property_intelligencetransactions_12moRisk & liquidity

Sold comparables in depth

Risks

What could kill this deal

Score confidence is low
largely a single source - treat the number as a prompt, not a conclusion
Rental economics needs verification before you rely on it
rent estimate 2150/mo (range 1950-2300)
Stress margin needs verification before you rely on it
costs not disclosed by the advert

Plan

Before you offer

1. Get two written rental appraisals from local lettings agents.
The rent estimate rests on area-level evidence, not lettings on this street.
2. Commission a full structural survey, not a basic condition report.
The score prices market evidence, not the fabric of the building.

Every step above was generated from a specific gap or flag in the evidence - no generic advice, no invented tasks.

Valuation & Market

Sale Estimate£458,000

Rent Estimate (pcm)£2,150

Gross Yield5.55%

1y Growth-10.5%

3y Growth+0.2%

5y Growth-0.4%

10y Growth+1.1%

Last Sold Price-

View Market Details

Risk Overview

Flood RiskUnknown
SubsidenceSignificant
RadonLow
MiningUnknown
LandslideLow
Air QualityLow
NoiseModerate

View Full Risk Report

Planning Activity

Recent Apps

0SE19 1LR

Approval Rate

-12mo

Development

low

26/AP/3184
5 day notification: Consent to allow us to purely remove deadwood from the front garden Oak Tree (T1).
Pending
26/03032/AUT
Temporary planning permission for a period of five years, for the temporary change of use of part of the former Rockhills Caravan and Motorhome Club site, to provide a Crystal Palace Park Trust office and community sauna facility, including the erection of a single-storey demountable office building and associated demountable sauna buildings, together with associated access, landscaping and screening, followed by the removal of all structures and restoration of the land to public open space.
Pending
26/AP/3134
T1 5m Conifer covered in Ivy possibly dead - Fell to ground level T2 8m Conifer lightly trim foliage over pavement and side path T3 8m Magnolia Reduce the height of the tree by 1m to leave a 7m tree and reduce a 4m spread by 1m on all compass points T4 4m Holly tree rubbing on the rear fence arris rail - Fell to ground level
Pending

View Planning Timeline

Ownership

Corporate Ownership63.5%
Overseas OwnershipNo
Lease Term Remaining121 yrs
CovenantsNone
Lease TypeFreehold
Last Ownership Change-
SourceLand Registry

View Ownership Details

Connectivity

Broadband (Standard)

12 Mbps

Mobile 4G/5G Coverage

EEThreeO2Vodafone

EV Charger

PTAL Rating

View Connectivity Map

Area Profile

Median EarningsLocal authority£43,006

Population Density6,545 /km²

Owner Occupied53%

Age Distribution

0-15 19%16-64 71%65+ 10%

View Area Profile

Schools Nearby

Paxton Primary School
0.3 mi
Good
Dulwich Wood Nursery School
0.3 mi
Report card2026
Ofsted no longer awards a single overall grade.
Dulwich Wood Primary School
0.4 mi
Good
Kingsdale Foundation School
0.5 mi
Outstanding

3 of 9 nearby schools with published figures were oversubscribed in 2026 - demand, not a catchment.

View All Schools

Comparables

View All

Grenville Court Lymer Avenue
-
£411k
-
Grenville Court Lymer Avenue
-
£490k
-
Grenville Court Lymer Avenue
-
£487k
-
Grenville Court Lymer Avenue
-
£450k
-

Boundary data not available for this property

No registered title polygon, building footprint, or street match for this property yet.

Why: No HMLR INSPIRE / OSM footprint / OS Open USRN match for this UPRN

Source: HM Land Registry INSPIRE / OpenStreetMap / OS Open USRN